Certified diamonds

IGI is the most famous European certificate with top quality standards. It's based in Antwerp (Belgium)

GIA is the US certificate, probably the most well known diamond lab in the world. It is a "must" for fancy diamonds.

HRD is based in Antwerp and is the oldest diamond certificate in the world renowned for it's high standards on high carat stones

Choose your diamond

Choose from over 15,000 diamonds updated every day at the best market price. Only 18carati offers you a huge stock of diamonds that you can sort by carat, color, clarity, cut, fluorescence, etc. using our advanced search. Discover how easy it is to create your custom solitaire ring with a dedication engraved in the stem and receive it at home in a couple of days with insured express shipping.

Shipping Information

Shipping by UPS or Fedex is free of charge, fully insured and traceable.All diamonds are updated continuously, however due to the fast turnover the stone selected may no longer be available. In this case we can always propose a substitute with exactly the same features and price.